One of the most dangerous positions to be in if facing a BJJer is the guard. Though typically being on top is a good thing, being locked up in an attacker’s legs is not necessarily safe depending on his/her level of skill.

In the following video, Rener Gracie helps break down The Guard with the help of brother Ralek Gracie

http://www.youtube.com/watch?v=JZbOyi9otoA